The IS-MAX BT Helmet is Bluetooth ready, with an exterior module recess and interior speaker cavities. This helmet has an integrated recess cavity for the ChatterBox XBi2-H Bluetooth unit Advanced Polycarbonate Composite Shell Lightweight, superior fit and comfort using advanced CAD technology Aerodynamic shell with large eyeport for greater visibility Impact absorbing, multiple density EPS liner Flip-up Chin Bar and Face Shield Single-button release allows chin bar/face shield to be easily opened or closed with either hand Flip-up chin bar makes communicating with with your helmet on easier and wearing glasses more comfortable XBi2-H Wireless Intercom Compatible Built-in recess pocket with panel cover allows the XBi2-H unit to integrate with the IS-Max BT helmet, minimizing wind resistance and creating an ergonomic design ACS Advanced Channeling Ventilation System Multi stage intake vents combine with rear exit vents to provide flow-through ventilation Chin bar intake vent provides airflow across the shield interior to help eliminate shield fogging SilverCool Removable/Washable Interior Lining Moisture-wicking and odor-free interior with advanced SilverCool antibacterial fabric Comfortable, removable and washable SunShield Visor System One-touch integrated smoke-tinted SunShield (U.S. Patent Pending #11/335,855) deploys and retracts quickly and easily Adjustable to three positions HJ-17 Shield and Quickslide Shield Replacement System QuickSlide shield replacement system allows for quick, secure and tool-less shield removal and installation Optically correct face shield offers 95 UV protection Comes with a Pinlock-ready face shield, Pinlock Lens inserts are available Nylon Strap-Retention Band Neatly secures chin strap Tech Specs Standards DOT-218 Construction Injection-Molded Thermoplastic shell with ABS / Polycarbonate Alloy chin bar Weight 3.86 lbs / 1750 grams (approx, based on Size Medium Solid Color) Chatterbox XBi2-H sold separately, quick and easy installation